Refrigeration & Air-Conditioning Practice Set-3

May 18, 2021

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1. The curved lines on a psychrometric chart indicates

2. In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about

3. Critical temperature is the temperature above which

4. When the temperature of the surrounding is higher than the temperature of the body, then the heat loss by convection from the body to the surrounding will be

5. The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P.

6. The domestic refrigerator uses following type of compressor

7. The minimum temperature to which water can be cooled in a cooling tower is

8. In a flooded evaporator refrigerator, an accumulator at suction of compressor is used to

9. Most thermostatic expansion valves are set for a superheat of

10. In a refrigeration system, heat absorbed in comparison to heat rejected is


 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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